Surface decorating machine



R. H.-M BEAN SURFACE DECORATING MACHINE Oct. 8, 1935.

Filed Feb. 9, 1934 3 Sheets-Sheet 1 4, @zw/wyzw/ 0a.s,1935.- RHMCBEAN W V f 2,016,868

SURFACE DECORATING MACHINE Filed Pen 9, 1934 s Sheets-Sheet z wwwwww Oct. 8,1935; R, H. M B EAN' "2,016,868

SURFACE DECORATING MACHINE 7' Filed Feb. 9, 19,54 3 sheds-sheet s Patented Oct. 8, 1935 SURFACE DECORATING MACHINE Robert H. McBean, Fairview Village, oriib, a

signor to Oxford Varnish Corporation, Detroit,

Mich., a corporation of Michigan Application February 9, 1934, Serial No. 710,508 1 10 Claims.

This invention relates to a surface decorating machine, such as a graining machine, and is especially concerned with the provision of a mechanism for transferring a design from a pattern roll to a transfer or offset roll, which roll pigment from a pattern roll, so as to completely a cover a transfer roll in a circumferential direc-- 90 tion without danger of overlapping of the pattern on the transfer roll, and regardless of the relative sizes of the two rolls.

Another object is to provide a mechanism whereby an offset roll may be manually moved 25 toward the pattern roll and will be prevented from engagement therewith until a predetermined point on the pattern roll is reached, and will then be locked in engagement with the pattern roll until a second predetermined point in so the revolution of the pattern roll is reached, at

which time the rolls will automatically separate. Other objects of this invention will become more apparent from the following description, reference being had to the accompanying drawings, which illustrate a preferred form of the invention. The essential characteristics of the invention will be summarized in the claims.

In the drawings, Fig. 1 is a side elevation of the machine embodying my invention; Fig. 2 is a fragmentary view, similar to Fig. 1, but illustrating certain of the parts in different positions; Fig. 3 is an enlarged fragmentary elevation, simi lar to Figs. 1 and 2; Figs. 4 and 5 are fragmentary I vertical sections, as indicated by the lines 4-4 and 5-5, respectively, on Fig. 3; Fig. 6 is a fragmentary horizontal section as indicated by the line 85 on Fig; 3; Fig. 7 is a section; similar to Fig. 6, but illustrating certain of the parts in the position shown in Fig. 1; Fig. 8 is a sectional detail of a modified form of'control mechanism; Fig. 9 is a vertical section as indicated by the line 9-4 on Fig. 8.

When decorating materialswith a design such as an imitation wood grain, it is often desirable to manually roll an offset roller, to which the design in pigment has previously been transferred from the pattern roll, across the object to be' decorated. In the past it has beenfound diflicult to transfer the pattern to. such offset roll,

as the pressure between the offset roll and the 5 pattern roll, during the transfer of the pigment therebetween is critical. Likewise, it has been difiicult to make use of'a power-driven pattern roll, because of the frequent overlapping of the pattern on the offset roll and consequent blurring 10 of the design on the material to be decorated.

The mechanism of the present invention overcomes such difflculties by providing a support for the offset roll, which, together with the offset roll, is manually moved toward the pattern roll, and by incorporating a mechanism to prevent contact between the offset and pattern rollers until a predetermined'point of revolution of the pattern rolls has been reached, and automatically causingthe two rolls to separate after a predetermined portion of a revolution has been effected. The mechanism also is arranged so that the period of contact may be regulated,- that is, lengthened or decreased as desired, or the period may be adjusted to start at various points on the pattern roll, "as desired. Likewise, provision has been made to regulate the pressure between the offset rolls and the pattern rolls during their actual contact. 80 Referring again to the drawings, my improved graining' mechanism comprises, in general, a frame In in which is rotatably mounted a pattern roll driven by any suitable source of power, such as by an electric motor I5 through 85 driving belt i6 and suitable pulleys I I and i8 secured to the motor shaft and pattern roll respectively. The frame also supports a pigment applicator which applies colors or pigment to the pattern roll. The offset roll is shown at 30, o and is removably supported on a frame member .40, which is pivotally connected to the main frame, as at 4|.

other object impressed thereon.

The design may be produced by any of the well-known processes frequently used for such purposes; Suffice it to say that the design may be in relief on the plate or it may be depressed therein, as desired. The mechanism shown in the drawings is especially well adapted for the latter type of printing plate.

The inking mechanism or pigment applicator comprises, as shown, a suitable roller 50, mounted in a bracket member 5| and contacting with the periphery of the plate roll 20. As shown, the inking roll 50 rotates with its lower area submerged in ink or pigment carried in a trough or pan 52, supported in any well-known manner by the main frame member I0. A doctor blade, such as is indicated at 53, acts to scrape the excess ink or pigment from the plate before it comes in contact with the offset roll 30.

When it is desired to transfer a pattern to an offset roll 30, the operator grasps the roll by its handles or spindles 3| and places it in a bracket 32, which is slidably mounted in ways 33 on the upper end of the pivoted frame member 40, heretofore mentioned. The entire frame member is then manually rocked about its pivot 4| toward the pattern roll 20.

The pattern roll and offset rolls are prevented from contacting with each other except at a predetermined time. As shown in Figs. 1, 2, and 3 a member or pawl carried by a lever 5 I, which is pivotally connected to the rocking frame member 40, as at 62, projects toward and engages the periphery 63, of an annular cam member 64, adjustably carried by the pattern roll 20, as will hereinafter be more fully described. The rim 64 is provided with a notch 65, ,Figs. 3, 4, and 5, which, during the course of rotation of the pattern roll 20, comes into alignment with the member 60, permitting the two rolls to contact with each other, at which time a lower hooklike end or latch portion 66 of the lever 6| drops behind an abutment 61 carried by the frame member I, positively locking thetwo members together.

Suitable adjustable studs 66a (Fig. 2) one of which is carried by the rocking frame member and the other by the main frame l0, serve to limit the pressure between the two rolls.

After the pattern roll has made a predetermined portion of a revolution, a pin 10, adjustably secured to the periphery of the roll, coacts with the pawl GI) and rocks the lever 6| upwardly against the action of aspring 68, withdrawing the latch portion 66 thereof from engagement with the abutment 61, thereby permitting the offset roll carrier to swing about its pivot l separating the two rolls.

As shown in Figs. 6 and '7, the member 60 is preferably pivotally connected by means of a suitable stud 62a to the outer end of the lever B I. The outermost end 61a of the member 60 projects beyond the end of the lever GI and enters the slot in the cam 64 on the pattern roll, as shown in Figs. 3 and 6. Immediately after such entrance, the spring 68 draws the latch 6| into engagement with the abutment 61, locking the two rolls together.

The continued rotary movement of the pattern roll 20 causes a cam portion 63 oiLthe cam 64 to engage the edge 1| of the member 60, rocking it about its pivot 32 and causing a projection.

or lug 12 to be swung into the path of the pin Ill, heretofore mentioned. Hence, when the pin .10, consequent upon the revolution of the pattern roll, engages the lug I2 as indicated in Fig. 7, it will rock the member 60 together with the lever 6|, about the pivot 62, thereby moving the latch portion 66 of the lever out of engagement with the abutment 61, whereupon the frame member 40, together with the offsetroll, will swing, under the influence of gravity, in a counter-clockwise direction about the pivot 4|. A suitable springpressed plunger 55, Fig. 4, serves to normally maintain the member 60 in position.

As the rolls separate, the member 60 is automatically reset, that is, moved from the position shown in Fig, 7 to the position shown in Fig. 6. For this purpose a suitable post or cam 15 is secured to the frame member ID and acts consequent upon the separating'movement of the two rolls, (during which movement the member 6| moves to the left in Figs. 6 and 7), to engage the surface 16 of the member 60, thereby rocking it about its pivot and returning it to the same position relative to the lever 6|, as is shown in Fig. 6.

To adjust the period of contact,that is, to lengthen or decrease the periphery of the pattern roll which contacts with the offset roll, it is desirable to move either the pin 10 or the cam ring 64 relative to each other. As shown in the drawings, both the cam ring and the pin are adjustable relative to each other and to the pattern roll 2|). The pin 10 is shown as carried by an annular ring member 11, which is provided with suitable arcuate slots 18, through which bolts 19 pass, securing the ring in an adjusted position to the roll 2|). Hence, when it is desired to adjust the position .of the pin 10, to change the point at which the two rolls separate, the 30 operator merely loosens the bolt 19 and moves the ring relative to the pattern roll.

Thecam member 53, which regulates the point at original contact between the two rolls, is likewise adjustable. vided with an annular portion 80, which has slots 8|, through which suitable bolts 82 pass. In this way. both the point of contact and the point of release between the two rolls may be readily regulated relative to each other or both may be moved 4( the same distance to change the length or location of the area of the pattern roll which is to be transferred to the offset roll. 7

It will be noted that I have so arranged my mechanism that it is well adapted to cover the a complete periphery of the offset roll, without overlapping. However, by reason of the sliding connection between the frame member 40 and the offset roll 30, the mechanism is readily adjustable for various diameters of offset rolls. A suitable 5| adjusting by merely moving the screw 34 is provided to lock the bearing-member 32 in an adjusted position.

Figs. 8 and 9 illustrate a modified form of con trol mechanism. As shown, there is provided a 6| latch member 60a, pivoted as at 62a, to the arm 6|, and normally retained in a fixed position by a pawl carried by the latch member 62a and entering a recess 9| in the lever 6|. In this instance, the member 60a enters the notch 65 in 04 the cam ring, and is swung outward on its pivot 52a, against the action of a spring I00, by the cam surface 69 of the cam ring, as heretofore described in connection with the member 60.

However, the swinging of the member We, due a to the action of the cam surface 69, acts to bring a lever 92 carried by the member 60a into the path of the pin 10, which, consequent upon the revolution of the pattern roller 20, will engage the pawl, rocking it in a counter-clockwise post-.7 tion about its pivot 93, camming the latch 90 out of the recess 9|, against the action of a spring llll, and raising both the pawl and the lever 6| out of engagement with the abutment 61. As shown, an abutment 94 of the pawl 8| coacts with 1 As shown, the cam 64 is pro- 35 the surface of the member 60a immediately after the pin 10 has rocked the compound lever 92 a the period of contact between the two rolls is adjustably regulated, and which is so arranged as to permit the transfer of an entire pattern from a pattern roll to an offset roll of substantially the same diameter as the former and I accomplish this without dangerof overlapping of the pattern to be decorated.

I claim:

l. A surface decorating-machine, comprising a frame, a pattern roll rotatably supported in said frame, means to apply pigment to said roll, a frame member movable toward and away from the pattern roll, means carried by saidframe member to removably support an offset printing roll, and means interconnecting the movable frame member and the main frame member to lock them together with the two rolls contacting with each other, and means to release said look after the offset roll has made one complete revolution.

2. A surface decorating machine, comprising a frame, a pattern roll rotatably supported in said frame, power means to rotate said roll continuously, means to apply pigment to said roll, a second frame member pivotally carried by the first-named frame for movement toward and away from the pattern roll, means carried by the second named frame member to removably support an offset printing roll, means interconnecting the movable frame member and the main frame member to lock them together with the two rolls contacting with each other, means carried by such pattern roll to release said lock and means to positively limit the pressure between the two rolls.

3. A surface decorating machine, comprising a main frame, a pattern roll rotatably carried by said frame, means to rotate the pattern roll, a supplemental frame pivotally connected to the main frame, means carried by the supplemental frame to removably support a printing roll, means to prevent contact between the two rolls until a predetermined point in the revolution of the pattern roll is reached, means acting thereafter to lock the two rolls in engagement with each other.

4. A surface decorating machine, comprising a main frame, a pattern roll rotatably carried by said frame, a supplemental frame movably connected to the main frame, means carried by the supplemental frame to removably support a printing roll, means to prevent contact between the two rolls until a predetermined point in the revolution of the pattern roll is reached, means acting thereafter to lock the two rolls in engagement with each other, and means to release the look when said predetermined point is again reached.

5. A surface decorating machine comprising a main frame, a supplemental frame movable toward and from the mainframe, a pattern roll rotatably mounted in the main frame, means carried by the supplemental frame to removably support an ofiset printing roll, a latch to connect the two frames with the offset roll in contact with the pattern roll, means to prevent the operation of said latch and to maintain the two rolls separated until a predetermined point in the revo- 5 lution of the pattern roll'is reached, and means to releasejsaid latch and'separate said'rolls at a predetermined point in the revolution of the pattern roll.

6. A surface decorating machine comprising 10 a main frame, a supplemental frame pivotally connected to the main frame for movement toward and from the main frame, a pattern roll rotatably mounted in the main frame, means carried by the supplemental frame to remov- 15 ably support an offset printing roll, alatch to connect the two frames with the offset roll in contact with .the pattem' roll, means to; supply pigment to the pattern roll, means to prevent the operation of saidlatch and to maintain the two 0 rolls separated until a predetermined point in the revolution of the pattern roll is reached, said means including a member pivotally carried by the latch andan annular member carried by the pattern roll, and means to thereafter release 25 the latch at a predetermined point in the revolution of the pattern roll.

7. A surface decorating machine comprising a main frame, a supplemental frame movable toward and from the main frame, a pattern roll 3 rotatably mounted in the main frame, power means to rotate the pattern roll, means carried by the supplemental frame to removably support an offset printing roll, a latch to connect the two frames with the offset roll in contact with the 85 pattern roll, means to prevent the operation of said latch to maintain the two rolls separated until a predetermined point in the revolution of the pattern roll is reached, said means including a member pivotally carried by the latch and an 40 v annular cam member carried by the pattern roll, and means coacting with said pivoted member to thereafter release the latch'at a predetermined point in the revolution of the pattern roll.

8. A graining machine comprising a main 45 frame, a supplemental frame pivotally connected to the main frame, a pattern roll rotatably supported in the main frame, adjustable means carried by the supplemental frame to rotatably support an offset printing roll, said supplemental 50 frame being movable to bring the offset roll into contact with the pattern roll or to separate it therefrom as desired, a latch to secure said frame members together, a pawl pivotally carried by the latch, an annular ring rotatable with the pattern 5 roll, said ring having a notch therein to permit the seating of the pawl at a predetermined time,

a member rotatable with the pattern roll, said ring also being provided with a cam surface to rock the pawl about its pivot and cause a por- 00 tion thereof to move into the path of said member, whereby contact between the member and the pawl will release said latch.

9. A graining machine comprising a main frame, a supplemental frame pivotally connected 65 to the main frame, a pattern roll rotatably supported in the main frame, an offset printing roll removably and rotatably carried'by the supplemental frame, said supplemental frame being movable to bring the offset roll into contact with v the pattern roll or to separate it therefrom as desired, a latch to secure said frame members together, said latch comprising a latch member pivotally carried by one of said frames and an abutment carried by the other frame, a pawl T5 and pattern rolls, said ring having a notch therein to permit the seating of the pawl at a predetermined time, a cam rotatable with one of said rolls to rock the pawl about its pivot and cause a portion thereof to move out of itsnormal position. means rotatable with one of said rolls to coact with said'pawl when-so moved to thereby release said latch and means to restore the pawl to its normal position. v

10. A graining machine comprising a main frame, a supplemental frame pivotally connected to the main frame. a pattern roll rotatabiy supported in the main frame, a pigment applicator roll carried by the main frame and coacting with the pattern roll, adjustable means carried by the supplemental frame to rotatably support an offset printing roll whereby rolls of different diameters may be supported with their peripheries in contact with the peripheries of the pattern roll, said supplemental frame being movable to bring an offset roll into contact with the pattern roll or to separate it therefrom as desired, means to secure said frame members together, said means comprising-a latch member pivotally carried by said 5 supplemental frame and an abutment carried by the main frame,-means to prevent engagement between the latch and the abutment until a predetermined point in the periphery of the pattern roll is in position to contact with the offset roll, 10

said last-named means comprising a pawl pivotally carried by the latch and an annular ring carried by the pattern roll and positioned to engage the pawl, said ring having a notch therein to permit the seating of the pawl at a predeterl6: 

